Battery pack



FIG. 1 is a top, front, and right side perspective view of a first embodiment of a battery pack according to my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof. 

CLAIM The ornamental design for a battery pack, as shown and described. 